For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

1

HMC498

v03.0713

GaAs pHEMT MMIC

POWER AMPLIFIER, 17 - 24 GHz

Functional Diagram

Features

Typical Applications

General Description

The HMC498 is ideal for:

• Point-to-Point Radios

• Point-to-Multi-Point Radios

• VSAT

• Military & Space

Output IP3: +34 dBm

Saturated Power: +27 dBm @ 25% PAE

Gain: 24 dB

Supply Voltage: +5V

50 Ohm Matched Input/Output

Die Size: 2.38 x 1.46 x 0.1 mm

The HMC498 is a high dynamic range GaAs pHEMT

MMIC Power Amplifier which operates between

17 and 24 GHz. The HMC498 provides 24 dB of gain,

+27 dBm of saturated power and 25% PAE from

a +5V supply voltage. The HMC498 amplifier can

easily be integrated into Multi-Chip-Modules (MCMs)

due to its small size. All data is with the chip in a

50 Ohm test fixture connected via 0.025mm (1 mil)

diameter wire bonds of minimal length 0.31mm (12

mils).

Parameter

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Units

Frequency Range

17 - 19

19 - 22

22 - 24

GHz

Gain

20

23

28

21

24

28

20

23

28

dB

Gain Variation Over Temperature

0.03

0.04

0.03

0.04

0.03

0.04

dB/ °C

Input Return Loss

11

11

8

dB

Output Return Loss

20

18

15

dB

Output Power for 1 dB Compression (P1dB)

20

23.5

22

25

21

24

dBm

Saturated Output Power (Psat)

27

26.5

25.5

dBm

Output Third Order Intercept (IP3)

34

34

34

dBm

Noise Figure

3.5

4.0

4.5

dB

Supply Current (Idd)(Vdd = 5V, Vgg = -0.8V Typ.)

250

275

250

275

250

275

mA

* Adjust Vgg between -2 to 0V to achieve Idd = 250mA typical.